Adenosylhomocysteinase

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S-adenosylhomocysteine hydrolase
Identifiers
Symbol	AHCY
Entrez	191
HUGO	343
OMIM	180960
RefSeq	NM_000687
UniProt	P23526
Other data
EC number	3.3.1.1
Locus	Chr. 20 q11.22

Adenosylhomocysteinase is an enzyme which converts S-adenosylhomocysteine to homocysteine.

External links

• MeSH Adenosylhomocysteinase

v • d • e Ether bond hydrolases (EC 3.3)
Adenosylhomocysteinase - Epoxide hydrolase - Leukotriene A4 hydrolase

v • d • e Amino acid metabolism enzymes (essential in CAPS)
K	LYSINE→acetyl-CoA Saccharopine dehydrogenase - Glutaryl-CoA dehydrogenase LEUCINE→acetyl-CoA Branched-chain alpha-keto acid dehydrogenase complex - Isovaleryl coenzyme A dehydrogenase - Methylcrotonyl-CoA carboxylase TRYPTOPHAN→acetyl-CoA Kynureninase PHENYLALANINE→tyrosine→acetoacetate (see below)
G	glycine→serine→pyruvate→TCA Serine hydroxymethyltransferase - Serine dehydratase alanine→pyruvate→TCA Alanine transaminase cysteine→pyruvate→TCA D-cysteine desulfhydrase threonine→pyruvate→TCA L-threonine dehydrogenase HISTIDINE→glutamate Histidine ammonia-lyase - Urocanate hydratase - Formiminotransferase cyclodeaminase proline→glutamate Proline oxidase - Pyrroline-5-carboxylate reductase - 1-Pyrroline-5-carboxylate dehydrogenase/ALDH4A1 - PYCR1 arginine→glutamate Ornithine aminotransferase - Ornithine decarboxylase - Agmatinase glutamate→alpha-ketoglutarate→TCA Glutamate dehydrogenase METHIONINE→propionyl-CoA Methionine adenosyltransferase - Adenosylhomocysteinase - (or MTR/Homocysteine methyltransferase) - Cystathionine beta synthase - Cystathionine gamma-lyase ISOLEUCINE/valine→propionyl-CoA Branched-chain alpha-keto acid dehydrogenase complex
NT	HISTIDINE→histamine Histidine decarboxylase tyrosine→dopamine→epinephrine Tyrosine hydroxylase - Aromatic L-amino acid decarboxylase - Dopamine beta hydroxylase - Phenylethanolamine N-methyltransferase - Catechol-O-methyl transferase glutamate→GABA Glutamate decarboxylase arginine→NO Nitric oxide synthase
Other	tyrosine→melanin Tyrosinase TRYPTOPHAN→serotonin→melatonin Tryptophan hydroxylase - Aromatic L-amino acid decarboxylase - Acetylserotonin O-methyltransferase cysteine+glutamate→glutathione Gamma-glutamylcysteine synthetase - Glutathione synthetase glycine→creatine Guanidinoacetate N-methyltransferase - Creatine kinase glutamate→glutamine Glutamine synthetase - Glutaminase collagen Prolyl hydroxylase - Lysyl hydroxylase
see also disorders, intermediates

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